Who among the following was not the member of Drafting Committee of Constituent Assembly of India?

The seven-member Drafting Committee chaired by Dr. B.R. Ambedkar consisted of N. Gopalaswami Ayyangar, Alladi Krishnaswami Ayyar, Dr. K.M. Munshi, Syed Mohammad Saadulla, B.L. Mitter (later replaced by N. Madhava Rau), and D.P. Khaitan (later replaced by T.T. Krishnamachari). K. Santhanam was a member of the Constituent Assembly but not of its Drafting Committee.